SILO POV
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Silo ran the new perimeter at midnight.
Not the standard configuration — the one he'd spent the forty-eight-hour window building specifically for a threat that didn't announce itself. Daven had described Grath's method: preemptive pressure, invisible approach, nothing that looked like an attack. Which meant a standard perimeter designed to catch direct approaches was the wrong tool.
What you needed for a threat that moved through systems rather than space was a perimeter that monitored systems.
He'd spent the afternoon with Arden and Mitch building it — three concentric layers, each monitoring different channels. The physical perimeter was the outer edge, unchanged, because changing it would signal that they'd identified a new threat. The middle layer was the communicatio
